Thinking out loud here...
My daily driver (2008 Civic Hybrid) calls for a 0w20 oil, and I think that's the end result of (a) a fuel economy goal, (b) tighter manufacturing / machining tolerances, and (c) the quality of the oils available.
My question is: Would it be possible to build/rebuild the NSX motor to such tolerances that then running a 0w20 oil would be fine?
And just to expand on that question: Could you take say, a 1960s V8 that requires a 20w50 oil, and build/rebuild to "modern" tolerances that it could run a 0w20 and be fine?
My daily driver (2008 Civic Hybrid) calls for a 0w20 oil, and I think that's the end result of (a) a fuel economy goal, (b) tighter manufacturing / machining tolerances, and (c) the quality of the oils available.
My question is: Would it be possible to build/rebuild the NSX motor to such tolerances that then running a 0w20 oil would be fine?
And just to expand on that question: Could you take say, a 1960s V8 that requires a 20w50 oil, and build/rebuild to "modern" tolerances that it could run a 0w20 and be fine?